Feeding mechanism



g- 27, 1929- s. HALVORSEN 1 1,726,021

FEEDING MECHANISM Original Fi led May 20, 1922 Patented Aug. 27, 1929.

warren STATES 1,726,021 rarest oreice.

SEVERIN HALVORSEN, OF CHICAGO, ILLEHOIS, ASSIGNOR TO THE NEW'SPAPER STUFF- ING MACHINE COMPANY, OF KEATTLE, WA$I-IINGTON, COZEl-PORATION OF NASH- ING'ION.

FEE-DING MEGT-IAN 153M.

Original application filed May 20, 1922, Serial No. 562,462. liivided and this application filed June 5, 1824.. Serial No. 718,168.

My invention relates to feeding mechanisms for feeding the newspapers or other articles from a stack or pile, and it relates in particular to means for automatically stopping the operation of the machine when the feeding operation becomes imperfect or is discontinued.

One of the objects of the invention is to provide a simple, practical and effective arrangement for automatically stopping a feeding device when the feeding operation becomes imperfect or is discontinued or stopped.

Another object of the invention is to provide mechanism by which reliability and certainty of operation will be secured.

In the accompanying drawings Fig. 1 is a side elevation in section of a feeding mechanism embodying my invention;

Fig. 2 is a front elevation of an end portion of a machine in which said feeding mechanism is incorporated and of which it forms a part;

Fig. 3 is a diagrammatic view of an electrical circuit arrangement forming part of the mechanism.

Referring to the drawings, I show particularly in Fig. 2 a part of a news-paper stuffing machine in connection with which this feeding mechanism is shown. It will be understood of course that the feeding mechanism may be used in connection with other machines or to some extent alone by itself.

As the newspaper stufing machine forms no part of my present invention, it will not be described herein further than to say that it involves a plurality of stacks formed by upright members 11, alongside of which the newspapers 22 or other articles to be fed are placed, said newspapers being shown piled one upon another in a fiatwise condition. In the stuffing machine the newspaper's are fed from one or more of these stacks forwardly from the same, that is in a direction to the right, referring to Fig. 1, and are then dropped intocertain mechanism in the st-ufiing machine which need not be described herein.

In the feeding of the newspapers, the bottom newspaper is fed to the right, as shown in Fig. 1, by means of reciprocating gripping or engaging members 55 which are mounted on a slide 6 which is pivotally connected with a link 7, which is in turn connected with a swinging arm 8 on a rock shaft 9. The gripping members 5-5 have teeth 10--10 adapted to engage the under surface of the lowermost newspaper or paper section 2, so that the reciprocating movement of the member 5 as caused by the rocking motion of shaft 9, will push said lowermost sheet outwardly from underneath the remaining newspapers in the stack and cause it to be fed or delivered as desired.

The outward'movement of the bottom paper or paper section 2 is assisted by a traveling belt 11 passing over rollers 12 and 13, the roller 12 being so located as to be just above the top of the bottom paper section so that the belt 11 will rest on the same.

The roller 12 is preferably driven by suitable mechanism (not shown) by which it is given an intermittent rotary motion corresponding to the outward movement of the bottom paper section, so that the belt 11 will act to assist in pushing the newspaper section out at the time the feed members 5 engage the under side of said section and push it out.

Other rolls 1 1 and 15 are preferably provided between which the outgoing news paper or other paper section will pass, and these rolls or other mechanisms will directthe paper sections one after another in any desired manner.

As an arrangement for automatically stopping the machine, either the entire newspaper stufiing machine or the feed arrangement herein shown, means are provided for causing such automatic stoppage when the feeding mechanism fails to feed, in which case of course there will be no paper section coming out from the under side of the stack.

The arrangement shown herein for carrying out the invention is particularly advanta geous, although of course the same may be varied substantially without departing from the spirit of the invention. This arrangement comprises a swinging arm 18 carrying a finger 19 which is arranged underneath the bottom paper section as the same passes out from the stack and between the feed rolls 1% and 15. The arm 18 is pivoted at 20 and is provided with a bracket member 21 to which a swinging arm or link 2:2 is pivotally connected at 23. A spring 24 is connected to link 22 tending normally to hold the right hand end of said link 22 and also bracket 21 in a downward position, thereby tending to force finger 19 upwardly against the outwardly passing paper section. A bracket 25 of insulating material serves as a pivotal support for link 22 and a contact 26 is arranged in position to be struck by end of link 22 when said end is moved upwardly by a spring 24: pulling the other end of said link downwardly. Contact 26 is supported by an insulating block .or strip 28 and a conductor 29 is extended from contact 26 to mechanism for controlling the operation of the machine.

Thus it will be seen that when there is a paper section in process of feeding from the stack the arm 18 will be normally held in a downward position, and as these paper sections feed continuously one after the other, said arm will always be depressed. When, however, the apparatus fails to feed and there is no paper section coming out from the stack, arm 18 will be allowed to rise, due to the action of spring 2 1, and this will cause link 22 to make connection with contact 26 and thereby make connection with conductor 29.

While the control of the machine by this arrangement may be varied as desired, 1 preferably provide an electrical arrangement by which the prime mover or motor driving the machine or feeding apparatus will have its circuit opened, and thereby be stopped, causing stoppage of the machine.

In Fig. 3 I show diagrammatically such an arrangement wherein the conductor 29 runs to a switch 30 included in the circuit or motor 31, so that when contact is made between member 22 and contact 26, switch 30 will be operated and motor circuit opened, thereby stopping the motor and also stopping the machine, either the feeding mechanism itself or the entire machine to which the same may be attached.

This application is a division of an appli cation filed by me September 10,- 1923, Serial No. 661,816, for signaling, indicating, stopping and starting devices which said last mentioned application was a division of an application filed by me May 20, 1922, Serial No. 562,462.

It will be understood that changes and modifications may be made without departing from the spirit of the invention.

What I claim is:

1. The combination of a stack for holding paper sections, means for feeding said sections from said stack and means for automatically stopping the machine when said feeding means fails to feed, said means comprising a swinging arm having a finger adapted to make contact with a paper section being fed from the stack, a pivoted member controlled by said swinging arm, an electrical contact adapted for connection with said pivoted member, spring means tending to move said member into contact with said contact but held against movement by a paper section being fed and a circuit including said contact and also including means for automatically stopping the machine when connection is made at said contact.

2. The combination with a stack for holding paper sections of means for feeding said sections from the stack, said feeding means including cooperating feed rolls between which a paper section may pass and stopping means comprising a swinging arm having a bent end to cooperate with one of the feed rolls and adapted to make contact with one side of a paper leaving the stack and passing through said rolls, and means for controlling said feeding means by, said swinging arm.

In Witness whereof, I hereunto subscribe my name this 28th day of May, A. D, 1924:.

SEVERTN HALVORSEN. 

